/*
 * Copyright 2009 - sanatkumar.padhy
 * 
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  
 *  	http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, 
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and 
 *  limitations under the License. 
 */
package com.googlecode.simplecrud.dao.util;

/**
 * Base interface which has the methods to convert between data types.
 * 
 * @param <O>
 *            - the value in the persistence object
 * @param <D>
 *            - the value in result set
 * @author sanatkumar.padhy
 * @see StringBooleanConverter
 */
public interface DataTypeConverter<O, D>
{
	/**
	 * convert the persistence object data type to DB value
	 * 
	 * @param object
	 * @return
	 */
	D convertToDbValue(O object);

	/**
	 * converts DB value as persistence object data type
	 * 
	 * @param dataValue
	 * @return
	 */
	O convertFromDbValue(D dataValue);
}
